Cotula is a genus of flowering plant in the sunflower family.

[4][2] It includes plants known generally as water buttons or buttonweeds.

The species within this genus can vary extensively in their habit, leaf division, involucre, receptacle and achenes.

Cotula is the largest genus found in the Southern Hemisphere of the tribe Anthemideae.

Since his account, only a few changes have been made but the number of species has remained more or less stable.